Finding the Fourth Proportional to 2,899.80, 3,997.72 and 1,942.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,899.80 : 3,997.72 = 1,942.32 : x
2. Step 2: Convert to fraction form
   2,899.80/3,997.72 = 1,942.32/x
3. Step 3: Cross multiply
   2,899.80x = 3,997.72 × 1,942.32
4. Step 4: Simplify right side
   2,899.80x = 7,764,851.51
5. Step 5: Solve for x
   x = 7,764,851.51/2,899.80
6. Step 6: Final answer
   x = 2,677.72